Method of and apparatus for dispensing effervescent liquids



Oct. 5,-1943. R. s. WHALEY 2,331,064

- METHOD OF AND APPARATUS FOR DISPENSING EFFERVESCENT LIQUIDS Filed Nov. 30, 1940 7 Sheets -Sheet l R. S. WHALEY 1943. 2,331,064 METHOD OF AND APPARATUS FOR DISPENSING EFFERVESCENT LIQUIDS FiIed Nov. 30.' i940 '7 Sheets-Sheet 5 IIIIIIIIIIIIIIIIIIZ my. a

INVENTOR Oct. 5, 1943. R. s. WHALE Y 2,331,064

METHOD OF AND APPARATUS FOR DISPENSING EFFERVESCENT LIQUIDS E'iled NOV. 30, 1940 7 Sheets-Sheet 4 IO 6o 10 INVENTOR' A ORNEY Patented Oct. 5, 1943 UNITED7--STATES PATENT OFFICE! METHOD F AND- APPARATUS FOR ms ,PENSINGEFFERVESCENT LIQUIDSM I ,ndipn, s. Whaley, Seattle,.Wash. Application November 30, 1940, Serial No. 368,024 13 cla s.

My invention relates to'methods 'of and apparatus for dispensing effervescent liquids. Draft beer is an example of a commonly dispensed effervescent liquid to whichthis inventionls'applicable. and my invention will bede's'cribed in connection therewith by way' ofiillustration and without limitation as to thescope'of'the invention.

The effervescent character of beer resides in the carbon dioxide included within the beer. This in-' cluded carbon dioxide is the life of the beer and the proportionate loss of carbon dioxide from the beer means a proportionate decrease in the qualityof the beer. 7

Ithas been known that the carbon dioxide content of the beer, which is normally developed retailer, various temperatures-may be encoun-i tered and the pressure within the kegvw'ill increase with temperature, so that ordinarily beer .is delivered to the retailer at pressures from ten" to thirty pounds per square inch and sometimes higher.

ture to retain the carbon dioxide content there-' in, as the beer willbe too cold to be-pala'table.

In other words, the temperatureto retain" the carbon dioxidewithin thebeen will be slightly abovethe freezing point,-wh'ereas the desired serving temperature of beer 43 to 47 Fahrenheit. f I

' The prior commercial practice or serving beer has been therefore to reduce the pressure within the keg so that the beer may be served with the desired quantity of foam, or to-transforrn the pressure between the keg and the dispensing spout by means of surface friction.--Referring first to the practice of reducing the pressure in the keg and dispensing the beer from akeg having such reduced pressura the carbondioxide escapes from the beer and the beer gradually becomes"fiatin the keg and unpalatable Under this system of dispensing beer, the practice has been to use'relatively small kegs and attempt to use the entire contents within a period of hours after the pressure has been'reduced, to

For example, in filling the kegsof beer" In dispensing the beer from kegs,;it is undesir-'- ableto have the beer at a low enough tempera v is "approximately i "40 get by, However the qualityrofzthebeer has decreased proportionately: to the time'th'e keg' I has been tapped. Referringto the second prior" art commercial method of transforming-t the" pressure into friction, so that the pressure ia't the dispensing spout was 'sufliciently small so that the foam ofgthe beer could be "controlled-, anumber of 'difiicultiesare inherent in suchsys "ems. -First, beer is a"liquid containinga 'large' percentage of solids. These solids tend to deposit on the surface areaof small passageways necessary to cause the frictionwand in turn reduce'the. pressure. Thesei'deposits on 'such' surfacesif-b'e-:

come'hardened and are very diiiicult to remove to a clean and sterilize the beer passageways."- 'Also, where the pressure is reduced at the beer dis pensing spout by friction, the amount offriction necessary will vary with: the pressure andicarbonr is being drawn into the glass. v

It is important'to note that in both typesibf priorart commercial devices the carbon: dioxide content of the'beer is reduced and the quality :of. the beer thus proportionately diminishedfiA fur ther diificulty in the prior art"commercial practices resides in the great loss of beer because'of excessive foaming when 'the keg is first tapped,-

or the excess beer delivered to the customer when; the'last portions of a keg are being dispensed.

In other words, to draw the first portion-of the i I keg the bar tender would draw more than the desired number of fluid ounces because off s'crap 'ing off the excess in the nature ofthe foam and replacing the same with liquid beer, and during? the later part erthe kegthebalr-"tencler would draw excess beer (althou'gh'of lesser quality)",. asthe proper amount of foam was ncbtpr'e'seritonthe top of'the' glass. The loss of beerin thedis-i: pensing operation for thereasons' aboveuner'r tioned has often been conceded as ten-'"to'twen'ty percent. In other words, if the retailer attempts to serve a predeterminednumb'er'of fluid 'ounces in each glass, as sixteen fluid ounces, from a;

given number of 'fluid ounces purchased he willi only be able" to serve eighty toninety p'ercentof:

the glasses which mathematically he should be able to obtain from the beer which he has purchased.

It is an object of this invention to provide a method of drawing beer that will permit the maintaining of a sufiicient pressure in the keg to maintain the original carbon dioxide content of the beer within the beer, regardless of whether the keg is full or partly. full. In, thisconnection the usual air or gas pressure system to provide desired pressures in the keg may be employed.

It is a further object of this invention to de liver liquid beer from the keg at the desired keg pressure into a measuring deviceiinthe nature. of a cylinder and a traveling piston maintained therein, wherein the travel of the piston is adjusted to provide a chamber (between the piston and the cylinder), havingthe desiredl'fluid. ounce content.

It is a further object to provide stop means movable into and out of engagementv with means carried by. the traveling piston, to-provide. for. selective iulltravel of the piston or intermediate travelof'the piston, so asptoprovide-a.chamber. having-the desired fluid ounce content and.;se lectively a chamber having a lesser fluid, ounce content. It is a further object, of-the invention to provide adjusting means which simultaneously, andproportionately adjust. bothchambers, that. is, for the full size or the lesser size.

It is. a further object to provide a, traveling piston which is urged in. one direction bytheincoming beer under pressure and whichmovement serves to tension springmeans, whichgserve,

to provide the motive force for-.the'zreturn stroke of the piston. It is an. obiecttoplfovide fiuid' controlled dampening. means to! regulate the speed of. travel of thepistonin eitherdirection.

Itis a further object. of the inventiontoprovide-valve inlet means to the. measuring. chamber which are mechanically linked;- with, valve outlete meansiin the measuring. chamber. to insure.-clos-. ingot the valve inlet means. beforeopening of; the valve outlet means.

It is a furtheriobject. of; the inventionito pro: vide. means which will:serve, to first. close the in letvalve andthen enlarge-the measuringchamberto relieve the pressure, provide for expansion andsettling of the beer before opening the;;out let means from the measuring chamber-.-

It is a further object of the inventionto provide a combinationmeans for enlargingthe measur ing chamber andalso functioning as a valve out let means.

It is a further object of the invention to;,p r o- 5 videlever means connected with the, measuring chamber valveinlet means, the means for expanding the measuring chamber, the chamber valve outlet means, and the fluid. controlled dampening means, so that an operatonby opera tion of one lever may practice mymethodot dispensing beer.

It is a further object of this, invention to provide amethod of dispensingbeer whereby the beer at a predetermined pressure urges a regulated and dampened traveling wall of a measur-. ing chamber against a stop to measure a ;quantity of liquid beer under a pressure sufiiicientto; retain the carbon dioxide within the beer, thereafter to seal the, beer within the measuring chamber from the source of, beer, thento enlarge the. measuring chamber to permit release of pressure and expansionofthe beenexposing the beer. to atmospheric conditions, and'then at a regulated rate of discharge urgingthebeerout of the measuring cylinder into a desired receptacle, as a glass.

It is a further object of the invention to provide a beer discharge nozzle which is characterized by being sealed, except for the delivery opening, from the atmosphere in response to movement of the operating handle in one direction to provide the desired character of flow during the main discharge operation, and, which nozzle is vented to the atmosphere by movement of the operating lever in the other direction to drain any beer tending to be retained in the nozzle by "atmospheric pressure to completely discharge the vide. release. mechanism between the, interlocked linkage provided; between the, inletvalve; and-the outlet valve from the beer measuring chamber, so that temporarily. forcleaning purposes both the saidinlet;v andgoutlet valves may be; rranged inopenpositi m It is a furtherobjectZ ofthe-invention to provide an operatinglever whichi rsimilar inmoveof, beereunder pressure to, the measuring, chamber; Theoperatinglever is helddnl this position until themeasuring cylinder is, full which may be; indicated, either, visibly or. audibly or both. Then; the, angular direction of 3 the; lever is reversed,;and; uppn the first: portion or the strokev oithe lever, which is: preferably, indicated by conl tacting additional resilient'pressure,means, providesflfor, firstclosing the inlet valve meansto the. then I full measuring, cylinder, moves ,means ion first" enlarging the capacity of the measuring,

chamberto provide for release of pressure and F expansion otthe; then-static beer, and then 1'8? leases the measuring chamber to the atmosphere, so thatthebeer from the measuring cylinder may be-delivered-therefrom out throughspout means to.a,con tainer. Thereafter, upon further move- ,rnentof: the lever, in this ,latter direction, fluid pressure control; means are utilized for, regulating. thedelivery ofbeer, from the; measuring chamber,'and the rate ofdischarg issubject to control; in ,speed by the further extent of movement of the lever in this latter direction. 1

i It is at furtherobject-of the inventionto provide; adjustable, regulating means, as a. screw orcam, to provide: for predetermined; maximum movement of-thelever in thevlatter direction, so as tolirnit, the; maximum discharge; rate of beer from themeasuring chamber; and thereby serve asajoam control means,

. Theaboye mentionedgeneral objects of my invention, together with otherswinherent in the same; are I attained by the device, illustrated in the, following drawings, the same being, a preferred-exemplary form, of embodiment. of my invention,- throughout which drawings like referencef, numerals indicate. like, parts:

Figure 1 is a side elevation, with lpartsbroken ".Fi 6 isa cross section 'substantially on broken line l3'l3 of away, of;a beer dispensing device constructe'dln accordance'with this inventiom t v Fig. 2 is a cross sectional view taken substan tially on broken line 2"2 of Fig. '1, parts being.

shown in planfand other parts being broken away; L :"W' "2.1 *Fig. 3 is a fragmentarysectional view taken substantially on broken line'3.3',of Fig. 1, showing parts of 'a cleaningilock-nieans :for allever;

Z Fig. 4 15a front elevation ofthis beeridi'spens-l ing device, the handle ,bein-g -:removed; 5?

Fig. 515 a top plan view of this beerzdispensing device; the handle being removed and parts being broken away; i

away;

Fig. is a sectional view taken substantially on broken line Ill-l0 of"Fig.' 11, parts being shown in plan and other parts being. brokenaway;

Fig.1 11. is a vertical mid-sectional view taken 'substantiallyonbroken line ||-ll of. Fig. 12;

parts being shown in elevation and'other parts being broken away;

Fig. 12 is a cross sectional. view taken substane tially on broken line I2I2 of Fignllipparts.be v ing shown in plan and other parts being broken away;

Fig. 13 is a vertical mid-sectional view taken Fig. 5, parts being shown in elevation; I

Fig. 14 is a cross sectional viewtaken tially on broken line M ld of Fig.1l 3, 'parts'being shown in plan and other parts being broken away and the handle being omitted;

Fig. 15 is a cross sectional view taken sub stantially'on bro-ken line 15-45 of Fig 13,' parts.

being broken away and other parts being shown in plan; I

Fig. 16' is a detached plan view of an inlet valve lever embodied in the invention;

Fig. 17 is a detached elevation of said inlet valve lever; a

Fig. 18 is a detached view of'a cover or housing for this device showing one half thereof in front elevation and the other half in vertical section;

Fig. 19. is a detachedgsectional view; taken on knob for foam-,Qontrolmeans;

Fig. 20 is a detached side elevation of a main frame and oil cylinder member; 7

able spring frame and guide'memberjma:

' Fig. 27 is a top plan view, taken on broken line. 2121 of Fig. 26, of said detachable spring frame" and guide member; I

Fig. 28is a detached elevation of a fill pressure control toggle member; V

Fig; 29 is'a detached elevation of said fill'pressure control member looking in the broken line 29-29'0f Fig. 28;

member, the samebeingshown on. a larger scale 'thanthe other views; f j 1 I Figs. 31 and 32 are views in cross section. of

said rotor, taken substantially on broken lines I 3 L4! .and 32-32 of Fig. respectively;

Fig. 33- is a detached plan view of a stop ring; Fig.- 34 is a sectionalviewwith parts in elevation -ofsai'd stop ring,:taken substantiallybn broken line 3434 of Fig."33; Fig. 35 is a detached front elevation of an operating cross head member; and L Fig. 36 isa sectional view of'said crosshead member,- taken substantially on broken line 3 636 of Fig. 35, parts being shown in elevation.

Preferably all threads-of all parts ofthisdevice where there: is .any possibility of-l'eakage are.

close fitted and all parts are madenon-corrosive as bymaking'them of Stainless. steelor plating with chromium or tin or the like where necessary or desirable for finishing purposes-onto. make themnon-corrosive to the beer with which they come incontact. J x

In Figs. l'to 15 incl. the several parts ofthe device areashownas they willappearifathe main substan piston-intthe lower largercylinder is adjusted as far upwardly as it will go on the threads of the piston rod onwhichit is mounted, This position is for the minimum'amount which thedevice can be set to draw for a full glass as hereinafter described. i

Referring to the drawings, 30 designates. a

main cylinder which may be :open at the, bottom and has a head 3i at the top end. Preferably this main cylinder is chrome :plated and polished both inside and outside: Four bosses 32, best shown in Figs. 6, 4 and l3,areprovided on the top side of the head 3|. in symmetrically spaced relation to facilitate the .attachment to the main cylinder of certain parts andto serve as guide means for certain other parts, ashereinafter ex,-

plained. The head 31 of the main cylinderhas a centrally .positioned upwardly extending integral tubular boss 33-, see. Figs. l1 and 13, that is ex:

ternally threaded for the reception of a capg34.

;Within theboss 33 is a centrally positioned openline. l9-l9.of Fig. 18; SJIdIS hOWlDg a button or Fig. 21 is a detached plan view taken on broken line 2l--2| of Fig. 20, and showing said main frame and oil cylinder member; V Fig. 22 is a'detached elevation of a hold downscrew and post for the main frame;

Fig." 23 is a detached elevation of a spring frame and guide member; V Fig. 24 is a detached top planview. taken on broken line 2424 of Fig. 23; of said spring, frame and guide member; I i

Fig. 25 is a detached elevation, taken on broken line 25-45 of Fig. 23, of aid spring frame and guideme'mber; i

ing whichis co-axial with a centrally positioned opening in the head 3| ofsmaller diameter-than ing a cross sectional shape like a flattened inverted'letter V is provided within the bottom portion of the tubular boss 33. This seat 35 is adapted to receive a form of packing 36'common1yknown as chevron packing. A'metal cap 31 rests on the top of the packing 36 and the screwcap I engages with this metal cap 3'1v to compress. the Q packing 36. This constructionYcomprises-one practical manner of providing a sliding liquid head 3 l'.

3| of the main'cylinder 30 adjacent the front-side thereof-for purposes of description herein,; the

Fig. 26 is a detachedielevation. of adetachdirection-of .1 Fig. ,30 isa detached view in longitudinal section of a foam andfill control rotor or'valve,

the interior of the boss. A packingv seat;35=hav-,

tight seal between the piston rod lll3'-and;the

oil is herein referred to as the front and the.

opposite side is herein referred to as the rear of this device. An integral-metal pad member 39, see Fig. 10, is provided externallyon theiront. side of the upright valve. chamber 38 and'is adapted to have the basezor back; portion :48. of a downwardly curved tubular discharge nozzle 4| secured thereto. Preferably the base portion 40 of this nozzle iszsweated to the. pad member 39. the pad 39' to insure proper positioning of the nozzle member- Preferably nozzle member 48-41 is chrome plated and polished externally and tin plated internally.

At the rear side, themain cylinder 38 is pro- 'vided with a reinforced or ribbedwall-portion '13 withwhich an externally threadedhorizontal tubularn'nlet conduit 44 is integrally connected at a location above the plane of. the head 3L of a stem 48 cooperates with. thevalve seat 46: to

control the inletofliquidfrom the tubular liquid inlet member 44 tothe interior of. the main .cyl'e finder 38. The inlet valve 41' is thus arranged. so that liquid or beer under pressure tends to hold valve 41 on its seat. 48.

The tubular boss that cooperates in forming.

the valve chamber 45 is internally threaded for the reception of a plug type cap 49 through which the valve stem.48 .is guided for-sliding movement. The cap 48 has an upwardly'extendingiinternally threaded boss 58 forithe reception of the externally threaded lower endportion of a. relatively long tubular spring housing A: packing member 52 is provided in the cap 49. around.

the valve stem 48 and a washer 53' on saidpacking is held in position by the spring housing. 5! g and clamps the packing to prevent leakage about the stem 48. Within thespring housing 51' the valve stem 48 has a shoulder .whereon a washer E4 rests. A compression spring55 is interposed between the washer. 54 and the top of the'spring housing 5| for yieldingly urging the valve 41 into a closed position. Liquid under pressure in inlet conduit 44 will also tend to hold the valve 41 closed.

A flange member 58 extends-upwardly from the inlet conduit 44,. as shown in Figs. 1, 2, 8, ll, 12 and 14. Said flange member 58- and said ribbed portion 43 are mounted against one side of a suitable vertical support (notshown), the

inlet member 44 extends therethrough toasource.

chrome plated and polished, is closely fitted within the cylinder 38 and'is. provided with a' valve stem 59 that extends upwardly through the cyl inder 38 and out through the cap 51. A relatively long compression. spring 80 is provided on the valve stem 59 between thedischarge valve 58 and the cap 51 to. yieldingly-urge the discharge valve 58 into. a closed position; I provide Dowel pins 42 preferably. are provided: on y A: discharge valve 58 of piston type; preferablyv drainage of beer from the nozzle 41.

a relatively strong heavy compression spring 61 interposed betweenathe top end portion of the cap- 51 and a tubular spring retainer member 62. The member. 62.is slidable within the discharge valve cylinder 38. and hasa shoulder 63 that engages with the top edge portion of. said cylinder 38.. When'the discharge valve 58 engages the spring. retainer 62; thespringil acts as an'additional load on the handle 88. so that an operator will; know that the valve 58 is open,.that beer in theqmeasuring chamber is being vented to the atmosphere, and that beer may be caused to be, dischargedupon further movement of the handle 86. Further movement of the handle 86 andcompression of the spring 8| will cause rotary movement of .hydraulic control valve means shown in detail in Figs. 30 to 32 and will provide for regulation of the discharge of beer from the measuring chamber (as hereinafter explained) Also the operator may control the extent of foam from. the operating handle 8511B? pending upon the extent of depression of spring 6|.

A small opening 54, Fig. 11, is provided inthe 1 wall of the cylinder 38 just below the lower end portion of the spring retainer 62 and in communication with a groove 65 in the portion 40of the nozzle. 4 l which groove 55 communicates. with the interior of thedischarge nozzle 4|. Valve 58 covers this opening.64 duringthe main discharge period as the said valve 58 is then raised. After the valve 58 is lowered into the position shown in Fig. 11, .air will be admitted to: the nozzle 4| :by way. of opening 64': andgroove 65' to facilitate Thus the nozzle 41:. at the finish of the main discharge has an .opening 'to' the. atmosphere .at. its highest point to discharge beer which-:is held in: the nozzle by atmospheric pressure. Also during the main" discharge there is no opening to the atmosphere except .the discharge opening so the desired character of flow is provided. The venting of the nozzle, to the atmosphere is provided only after the direction of lever 86 is reversed so that upon each operation thenozzle Will; be completely drained.

A main frame ;member 66,- shown detached in Figs. 20" and 21 andshown inFigs. 1', 2, 4.8, 11 and- 13, is adapted to be mounted on the head 3| of the main cylinder 38. This main frame 68 comprisesfour upright supports 61; each having a foot portion 68 thereonythat is adapted to rest on one of. thebosses 32 :onthe head 3!. Four hold down screws 69, which also serve as upright spring frame guides,-are used to secure the main frame 66 .to' the cylinder head 3|. Each hold down screw 88,. shown detached inFig. 22, base threaded. lower end-portion 18;. of smaller diameter than the remainder of the screw,- that is adapted to screw into a suitable hole in cheer the bosses-32 and that-forms a shoulder 1| adapted to engage with and clamp the foot portion 68 through which the screw extends to the bosses 32.

Anoil'cylinder His-provided within the upper portion of the main frame; see Figs. ll, 13, 20 and 21, and a centrally positioned opening 13 is provided in the bottom portion of this oil cylinder 12. Preferably the exterior of the oil cylinder portion ofthis main frame is square, see Fig. 21,.and is providedwith threaded holes 14 for the reception of screws 18, Ffigs..13 and 14, by which an oil cylinder head 15-issecured thereto. The function of the oil= cylinder 12 and parts connected therewith is to provide for regulated rate pensed is securedrto the bracket '16 by a clamp" 83 and screw 84. Also the bracket 16 servesf'as a support'for a clutch mechanism 200for*erigag'-- ing recording device 82 with the rack'llland gearing I I4 during one direction 'oftr"avel and tion of travel, as hereinafter explainedfl Two spaced apartbracket member'sti fltsee Figs. 14 and 21), are provided on the front side of the main frame member 66 forthe reception therebetween of an operating handle or lever86, Figs. 1 and 11, that is pivoted on a transverse pin member 81. The ,1ever"86 ishereinafter more fully described' Y Another bracket 88, Figs. 11-and'21, provided" on frame member 66 between the bracket releasing the said parts during the other? direcmember 85 and a threadedhole 89 isprovided in the bracket 88 for therec'eption' of'an' adjustable stop, as adjusting screw 90,'which functions as a foam control as hereinafter described..} A

vertical'guideway 9| see Figs. 3, 11', 12 andQZl is provided for slidably receiving the base portion 92 of an operating cross head, Figs. 1'1, 3 5'and 36; This cross head hasjan outwardly protruding lug 93 for engagement by the roundedmember I21 of thelever 86 and also has an outwardly protruding bracket portion 94 connected bya pin 05 with the stem 59 ofthe dischargevalve-ih see Fig. 11.

Operativelydisposed within the main'cylinder 30 is a main piston comprising an upper m'etal piston member 96. a cup shaped-piston ring-"91 and a metal piston ring clamp 96. The piston ring 01 is of suitable packing m'aterial having some flexibility and is securelyheldbetween'the piston member 96 and the piston' 'ring clamp 98; The main piston member 96"is of "slightly smaller diameter than the main cylinder'and has a flat upper. surface adapted to c'ome in contact I 3 with thehead 3| of'the cylinder 30 when there' is no liquid in the cy1inder 30. A plurality of ribs 99 areprovided on the bottomsideof'the main piston member and-the plane of section in Fig. 13 is longitudinally through two of these ribs.

Fig."15 also shows these ribs in section;

. The main piston member 96 "alsohas a downwardly protruding tubular' bo'ss" I 00 provided'near its lower end with external threads for there: ception of a nut IilI 'by whichthe pistonring clamp 98' is secured inclamp'e'd engagement "with f the cup ring 9l. Also the tubularboss I00 is'in ternally threaded for cooperation with an externally threaded portion I02 of a. piston rod. I03.

A packing member I 04 ig-provided within' 'th'e piston 96 adjacent-thenpper'facethereoi' and around the piston rod 103. The piston-Ting!" fits snugly within the cylinder at and helpsto prevent the main piston assembly from turning Within said cylinder audit will be Obvious that. when the piston rod I03is rotatedrelative'to-the piston 96, longitudinal movement will 'beprovid ed between'the piston 96 and the piston rod I03 and parts connected therewith;

The piston rod I03, FigsJ-ill and 13,'has'a non circular portion, such as'hexagonal porti'on I05 provided thereon. i This non-circular portion I05 is' seatedfiwithin an externally threaded disc U shaped volume'adjusti'ng member I96 that is threaded into a tubular socket I01 which is in- (tegral'with abase portion III] of a spring frame and guide member, shown detached in Figs. 23, 24and 25. Obviously rotation of piston rod I03 will move the disc memberl06 longitudinally within the socket I01 and thiswill provide for adjustment of'the volume delivered at each operation=of' the main piston for a half portion or five cent glass-ashereinafter explained, and

will alsoadjust the full portion or'ten cent glass by providing longitudinal movement between the rod I03 and the piston 96.

Above the hexagonal portion I 05 the piston: rod

I03 is' of larger} size and is circular and has a shoulder resting on the disc I00. Also the piston rod l03'e'xtends through 'apackingmember -I108,

see Fig. =11; that is provided in the bottom wall of the-"oil cylinder 'lz. Within the oiljcyl inder I2 thepistonrodlllfi is provided with a rigidly connectedpiston I09; 'Movement'of thepiston I09 is controlledby oil within thefoil cylinder Hand this controls the speed of movement'and timing ofthe main piston assembly in the' r nain cylinder'30 during operation. More particular y the operation of the oil cylinderf'llserve's'to control the speed of travel of the piston-96 and 1 the inlet and discharge of bee'r from the measur-' ing cylinder 30. I

I The springframe and guide membershown de tached in Figs. 23, 24 and 2'5and also shown in Figs. "1, '11, 12 and- 13,- comprises the base portion I I0, the downwardly extending socket I01ftwo v diametrically opposite lugs III .extending abelow thesocket "I01, a shelf'like plate portion I I2 ex tending o'utwardlyfrom one side of the socket.

IO'I'and twotubular upright spaced apart spring guidesl I3 positio'ned at the sideof the socket, l,0'I 'oppo's'itethe plate member H2 and adaptdto'fit over two of the upright hold down's'crews'or posts 69. Anuprightgear rack'F-I M is rigidly connected with one of the tubular spring guides H3. detachable spring frame, Figs. ZSand is's'ecured by-screws H5, Figs. 1 and'2,'to the shelf H2. .This detachable spring frame-comprises a base 'I I6 and twoupright' spacediapart tubular spring guides 'IIT." A compression spring a H8 is provided'within each of "the spring guides H3 and IIl'with its upper end abuttingagainst the top of the spring guide and its lower endrest ing on oneofthe foot members 68"of the'm'ain frame 66, seeFigs; 1' and 8. These springs exert an upward pressure on the spring frame arid guide'in'embers urgingthe mainpiston assembly inthe cylinder 30 in an upward directionv at a'll.

times. When-'the'two "springframe-' mernbers are j 1 secured together'by the screws H5 they become rigid with eachotherand operate-as a unit: A

cam H9 is provided on one of thespringguides' Ill; seeFig. 26,'for operating the indicator "I9 to count the a ber of upward movements" of piston 96'and thereby count thenumberiof glass-- on the-other spring guide II! to act as an indicating pinv'isible through the slot'liill. 'see 18;in cover I 95 indexing with-figuresstamped on" the cover to show the volume at which the main; cylinder is set to measure. r

The oil cylinderhead 15, Figs. 1,4, 5, 8, 1 1 and 13, is provided with four radial arms m, Fig. 5,- I. that e'xtend outwardly therefrom andhave holes I22 therein, see Fig. 5, to receive'and' be'supported by the upper end portionsofthe holdfdown screws or posts 69. The main frame member 66 and the hold down screws or'posts; 69 and the oil cylinder head thus cooperate to form a substantial frame structure above the cylinder 30 upon which operating parts of-the device are mounted.

A fill pressure control toggle I23, shown detached in Figs. 28 and 29, is mounted for vertical movement in a guide slot I24 and a guide lug I25 positioned at the front of the main frame-mounted for vertical movement in a'guide slot I24 and a guide lug I25 positioned at :the front of'the main frame member 66, see Figs. 2, 3, 11 and 21. A bracket I26 is provided on the toggle member I23 for engagement with a rounded member I21 on the handle 86. A compression spring I28, see Fig. 11, is provided on the toggle'member I23 between the bracket I26 and the frame lug I25 in which the lower end portion of said member I23 is guided. This compression spring I28, Figs. 4 and 11, yieldinglyurges the member 123 upwardly and stop means-may be provided for limiting the upward movement of this toggle. Cam 202 (Fig. 29) on this toggle I23 operates lever 204 (Fig. 2) which operates lever 294 and clutch mechanismZDO, so that counter 82 only operates during One direction of travel of rack I I4. In view of the fact that no claim is made for the counter mechanism, thesame is not shown in detail.

The upper end portion of the stem 4B- of the inlet control valve- 41 is providedwith a nut I29 under which is'positioned the forkedrear end portion I38 of a lever arm I3I, see Figs. 3, 11, 12, 13, 14, 15 and 16. The lever arm I3I'is curved, as'shown in Figs. -12'and 16,-so as to extend through a'suitable passageway I32 in the main frame member 66, Fig. 12, and said lever is fulcrumed on a screw I33, shown by dotted lines in Fig.12and by full lines in Fig. .13. The forward end of the lever arm I3I is positioned between the frame brackets 85 alongside of the cross head 92--93-94, asshown in Fig. 12, and under the rounded member I21 on the end of handle 86. I

Downward movement'of the forward end portion of this leverarm I3I will move the rear end portion of said leverarm'upw'ardly and open the inlet control valve 41. When the handle-86 is moved clockwise from the position shown-in Fig. 11, theinlet valve 41 will'be opened and the clutch 200, between gearing II4'-and registering means '82. is thrown out, thus preventing operation of counter 82 during this direction of movement. Whenthe handle 66 is moved counterclockwise, the inlet valve 41'will be closed by spring55 and theclutch 200, between gears H4 and registering means-82, thrown'in, and thus the registering means 82 will operate during this direction of travel. If the lever is-moved far enough, the discharge-control valve 58 will be opened.

When the inletvalve-41 isopened, by movement of the upperend portion of the handle 86 toward the oil cylinder 12, liquid; such as'beer,

under pressure will enter through inlet conduit 44-and valve seat opening 46 and will begin to iorce'the main piston 96- 91-98 down against the pressure of springs I I8 and at the same-time the oil piston I09 will beginto-move downwardly in the oil cylinder 12 and'will begin'to force oil out of the lower part of said cylinder 12 and into the upper portion thereof. as hereinafter described. The beer-is thus admitted intothe main cylinder under a predetermined pressure and at a predetermined flow.

Positioned upon the oil cylinder head 15 is an oil reservoir I34 that'is secured to the head 15 by screws-18. Gaskets I34 are preferably provided between the oil cylinder head 15' and. both the oil cylinder 12 and the oilreservoir I34.

A horizontal cylinder I35 is provided in the oil cylinder head 15 for the reception of a foam and fill control rotor or valve I4I, see Figs. 11, 13, 14, 30, 31 -and 32. This cylinderI35 has three ports I36, I31 and I38 on its lower side and one port I39.in-itsupper side. The ports I36 and I31 communicate with the upper end portion of the oil cylinder '12. The port I38 communicates with a passageway I40 in the wall of theicylinder 12. The passageway I40 extends to the lower end of the oil cylinder 12 'andcommunicates with the bottom portion of said oil cylinder 12 below the piston I09. The upper port I39 communicates with-theoil reservoir I34. v

The-rotor=I4I, Figs. 30, 31 and 32, has a longitudinally extending passageway I42 connected atone end'with a radial port I43. Two other radial :ports' I44and I45 extend: from the passageway I42 to the exterior of the rotor I4I diametrically opposite from theport 143 and longitudinally' oifset therefrom. Two other radial ports- I46 and I41 are provided in the walls of the rotor I4I diametrically opposite to each other andsubstantially atright angles to the ports I43, I44 and I45. The outer ends of the ports I48 and: I41 terminate in an external annular groove I46in the rotor. The port I44-terminates in a straightgroove-IH which widens the mouth por ti0n-0f said port I44 on the exterior of the rotor MI. The forward end portion I50 of the rotor I4I -is of smaller diameter than the other portion to'make room for packingISI that is held in place by a suitable nut I51, Figs. 11 and 14. Preferably a square shank is provided on the forwardend of the-rotor- I4I and acrank member I52 issecured onthis shankbva screw- I53. Tw pins I54'and I55=extendsidewise from the crank I52 in oppositedirections.

-Thefill'pressure control toggle I23 has 'a pin engagingmember I56 on the upper end portion thereof. This pin-engaging member I 56 is adapted to engage'with the forwardly protruding pin I54 onthe crank member I52 ofthe rotor I4I. The-l0wer edgeof' the pin'engaging-member I56 preferably has an inclined portion I58 positioned to engage with the pin 154 of the crank member I52. A lug m'ember I59 of an exact shorter lengththan the member I56 isprovided in spaced relation-below themember I58. This lug mem' ber I59 disengages with pin I54at an exact positionof pin I54, sothat lug I60 will engage pin I 55' at exact-position each time. The pin I55 of crank'l52'is positioned for engagement by two spaced-apart lugs lfill'and I6I on the upper end portion of a bracket l62 that is integral with the cross headmember9293--94. Lug member I6I disengages 'pin I55 at-an exact position of pin 55 so thatmember I56 "engages --pin I54 at exact 'position'each-time. Adetent spring I52, Figs. 4,

Band '14,; is positioned to bear against the crank I52 andtends tolhold therotcr MI in a neutral position exactly where members I59 and I6I disengage pins I 54and I 55 respectively.

The amount'of liquid delivered from-the dispenser'at'each'operation of the lever is regulated in twowa'ys. One way is by rotating the piston rod I03 in the internally threaded shank I of the main piston member 96, which will adjust the rod I03 longitudinally of piston 96 and regulate the extent of downward travel of piston SS and the volume of the five-cent glassrpTherod I03 may be turned by inserting a tool with a noncylindric'al end portion into a socket I03 of noncylindrical shape in theend portion of said piston rod I93, see dotted lines, Figs. 11 and13. Ob-

boss I01.ofthespring frame III], which adjusts viously if the rod I03 is turned while the main piston is held non-rotatable, then the main piston 9691-'-98 will be adjusted vlongitudinally of the rod I03, thereby adjusting the large size or tencent glass, and also the volume adjusting member I66 will be simultaneously; adjusted longitudinally withinthe socket I91, thereby adjusting the small size, or five-cent glass.- By providing twice as many threads per inch within the socket I01 as on the rod I63, I provide for proportionatelyadjusting the volume of'aesmall or five-cent glass and a large or a ten-cent glass of beer Obviously other ratio of threads may be employed to provide a different ratio between asmall glass and a large glass.

The other adjustmentof a different type is an instantaneous adjustment made from the exterior of the dispenser to selectively provide for the delivery of either a small or five-cent; glass or a large or ten-cent glass of beer. upon operation of the lever 86.

To adapt the device for thelatter adjustment. I provide on the internally threaded socket ID! that extends downwardly from the spring frame I6 the two downwardly protruding lugs III, and further provide on the sides of said socket two recesses. l63,see Figs; 6; 9, 10, 23, 24 and 25. These lugs II I cooperatewith an adjustablestop ring I64, Figs. 33 and 34, that is positionedn the cylinder head 3| and rotatively' adjustable around thecentral tubularboss 33; The stop ring I64 has upwardly protruding lugs I65 adapted to be engaged by the lugs III of thespring :1

frame for one position of'the stop ring and has cut away portions lfifi' adj'acent the lugs I65 adapted to provide clearance for the ,lugs III for another position of the stopring.

The stop ring I64 is rotatively adjusted by a lever I61 on the exterior of the dispenser, see Figs. 4, 5 and 6, that is connected with a shaft I68 which is journaledin one of the bosse 32 of thecylinder head 3I; Th shaft I68 has a-cam I69 on its inner end that is positioned for engagement with an upwardly protruding member I16 on a drag link Ill. The stop ring I64 has a pin I12 that engages within a hole I13 in the drag link. When the lever; I51 and part 'connected therewith are-in the-position shownin Figs; 4, 6 I

and 10, the-cut away. portions 166 will be aligned with the lugs IIIof the spring frame and the spring frame will befreeto move downwardly until stopped by engagement of the bottom side of piston I99 with the bottom of oil cylinder 12.

When the lever I61 is turned to the left, Fig. 4, substantiallyaa quarter turn, thestop ring Hi4 will be angularly moved clockwise from the-position shown in Fig. 6 far enough to bring the lugs I into alignment with the lugs I I I, thus providing for stoppingthe downwardmovement of the spring frame when the lugs I I I strike against the lugs I65.

Aspring I14 onan air relief valve stem'iIIS is positioned to engage with a lug I16 'on the periplrery of the stop ring I64 and urg s the stop ring shownin Fig. 11, with counter-clockwise into the position shown in Fig. 6. When the lever I61 is turned to the left, Fig... 4, into a horizontal'position, it will remain in the horizontal position until manually moved back tov the vertical. The spring I'i4moves the stop ring I64 and lever I61 back-to theposition shown in Figs. 4 and 6 and tends to hold them inthat posi tion. I The provision of the stop ring I64 ,ahdbperating devicestherefor makes it possible for the person operating the device to set the lever H51 in an upright position for drawing a large size or tencent glass of beerby allowing themainpiston and spring frameto be moved down a maximum amount or to turn the lever J61 horizontallyand set these parts so that the lugs It I of the sprin frame will strike against and be stopped by the lugs I65 of the stop ring I 64 to stop the main piston and spring frame before they have been moved too far down for drawing a smaller-or five-cent glass of beer.

Th valve stem I15 is part of an air relief means for relieving air in the inlet conduit chiefly in starting the operation ofthe dispenser after it has been disconnected'from the source ofjsupply of liquid. This valve stem, .see Figs. 6 and 'Lh'as' a portion I11 threaded into one of the frame bosses 32 and is provided with a tapered valve point I18 for selectively opening or closing an air relief passageway I19 that commiuiicates between, the atmosphere, preferably at the bottom of the cylinder 30, and the upperiportion of theinlel; conduit 44. After the device has been connected with a fresh keg of been this valve may be opened to relieve trapped air and may be closed asso on as beer begins toflow from the relief passinys I 3| bythe force of the springs H8 which tend to elevate the spring frame means and act through, volume adjusting disc I86 'andpiston rod I63 to exert an upward pull on the piston 96. 'Also'the operating lever 86 willbe in th neutral position. valves .41 and 58; both closed. I r

It is who noted'that in Figs. 1,4, 8, 11 and1l3 herein the main piston member 96 is threaded onto the shank I06 as farit will'go. This would provide an adjustment for the delivery'of the minimum amount of liquid ,within the capacity of. the device at ach operation and anadjustment ofthe piston member. 95 further downward on the shank It!!! would, ordinarily be used. v

When the operating lever 86 is in the neutral position the foam and fill control rotor I4 5. will be turned so thatall ports communicating with the oil cylinder 12 will be closed, itbeing noted that there is always communication through "port means I46-cI41'jI-48 with the-oil reservoir I36.

If the handle 86 is moved from the neutralposition toward the oil reservoir I 34 as far as it will go or untilthe round-ed lower end portion"! 21 of said handle encounters stop members I86 on the cross head 9293-94, the end portion I21 of. the handle 86' willdepress the forward end of the inlet control lever I3 I butfirstwill move fill pressure control toggle I23 downwardly and through cam 262 will operate clutch 266 and disengage the registering niechanismBZ. a y

Depressing the forward end portion of lever I3I s, will raise the rear engi portion thereof and open the 'iniet val v' 415" At'the' sam time the-de ree siorr of thefil1 pre ssure"oritfol togle h'i'fi' will cause the engaging m'rii ei" lfiB' thereb'f to engage Withthe 'piirl fi ljbf drankhrehiher i fifami mintherein; tina' fiu 'coLftiol rotor M'r-trire'u g r an angle d'ffhubstahtially't'ii"ety degrees. This will bring the port 113* or 'saitirbto'r "M r ihto registration with the port I35 of the rotor cylinder I35, thusallowi "0i1 t'dfl w 'frohibel ovfthepi's ton I 8? 'throuhfpassageway rs-a; 'uriaer-=va1ve pliinger' I smile into on reservoir r34 a'ridfat the same time allowing on to new thrmigh ports-ms and 143"fid let'intt the uppr efid portion "o-f'the oire liiiderf The'speed'at th'ein'a'in piston 96 ca move downwardlygis thus regulated bythe when" the "main piston 516 has moved downwardly'untiltlielugs' l'I'I on the spring ha'me member strike against the lugs IE "entire-stop ring l'fifor th lbWe'r'p zairt of' the on piston I03 striliesagainst thebpttom or the bilhylind'e'r 12, deperidin' on whethefthe" sto'p ring" :94 is set for deliveryof' afive ce'nt gias's ega tn'cent glass of beer; then 'dowhvii'aid movemento'f the man; piston 965 91- 98 tvi ll' bestopbei' rection, counterqlpolgjqis as'respects the snow ing in Fig; 1 or' i s movedjd 'whwargily'to neutral position, the ta r portion I 21 6; t e handletfi wil'l have been r' iS LtniiS permittin'g' angular meveme fh ev r; I 3 I n rmit? ting spring 55 to'c1ose theinlet valveffl, our ing the m'ovment ofjthe' rounde'gl portion I21, which closes the'inlet valve fljthe spring" I28 raises the fill pressure controltogg'le [23; causing the lug a thereo'i to le i -ma pie leg of the rotor MI upwarqlyandf 'tajsively inove the rotor I 4I so that all; parts communicating with the oil cylinder I2 arficlosed, "thus"p'refventingany'upward moverrient of the main piston 9j9 IQ-'9 8 Thus, ih the neutrahposition after the measuring chamberjhas b'een f ll egl b o t h the inlet valve Gland theoutlet" valve 5; are closed and the piston9591. -98,is held immovable because ojfwthe position of the'fo'am and flll controlrotor I. 7

Further counterclockwise movement of the lever or handle 86 from the neutral position per mitsspring128 to move the fill pressure centrol togigleI 23 further upwardly and thecam 21532 on said tpggle IZB'diseng'ages the clutoh lever 4 thus letting in or 'tch' 20a and penmame gears H4 to enga e with the'registerin'g' mechanism 82, Thus the registering mechanism 82 willgoper'ate only during the upwardmovement of the main piston 96'9 7I,Q andji-egis'ter the numb'er of fluid ounces ofbee r'dispensetl.'-" Further counterclockwise"movement of the leveror handle sfii'w ill'c'ausfe the ehd I21 thereof to begin to lift the cross head 9,z 9 3- s4 and this will, begint'o 1ift"the discharge valve 5;}. This discharge valve 58 must move a7 substantial distanoe before itbgin's to uneover theopening to the discharge spout 41. 'Ijhu's the first movement' of the discharge valve5 functions toincrease the capacity of the measuring cylinder and permits the pressure to be 'relievedan'd. the beer to be expanded in the enlargegl measuring cham- 1061. During this per odjo'f nlargin the measuring chamber and releaseb'f, pressure; themain piston "96-81-48 is heldimmovable, because of the position of rotor MI, an'd the heerfis' permitted to expand in a static state and ag'itat'ionlo f the beeri" without *Asf'soon as valve 58 completely uncovers the outlet passageway to "spoutfl I1 valve 58 'close's' poi-15 64 inte -passa eway- =65 so that spout 41 movement of 'h'ahdle 88 from i t's ne'utral position' and 'tiritil the tuner; valve 58" has" 'inoved into engagement with thespring retainer 62, the fill" pressur bontrol toggle I2'3 wi11havemoved fur' the? upwardly b'y' reason Ofthe pressure "from spring I28"and will hav'e'accorriplish'ed the folldwi'ngi Tfl'e 111E I59 hasbn' engaging phi I54 anti" angu1arlyinovifig the "rotor I'M"; "The lug I 59' has nearly movdmast the pin 154, leaving rotor I'M inaiieutral'positionl uring this same movement of the handle 86 position just after the lug I59 'hasfieleased the pin- I542- This upward' movement of the cross headduring" this perio'd -of--'movement of the hand1e'86haspermitted the lugWBU to move the pin I and in turn 'rotatively move the rotor I 4 I "so that when the 'valve" 58 'engag'es with the springretainer'fl the port I is'j'ust about ready"'to'comrnunicate withthe'port' I31 in the control rotoroylinder I'35'an'd' the'po'rt M5 of'the'rot'or' I4I haseommun'ica'tively con nected with port I38 of oil rotor eylir'l'd'er I35;

Further downward movement of the" handle 86 and in turn rotary movement of the foam 'andfil1' control rotor Ill-after the valve 58is'resisted by the springi'llwfll thus serve to Teg'ulate'the' rate offth discharge of oil blet'w'een the top and-'b'ot'-' tom-of the oil cylinder ITan'd intu'r'n regulate The" operator may regulate the rate of discharge of the beer' bytheextnt of"dep'iession"0f th'handle 86 which will o'nfirol the ra t'df flovv of'oii from -the upper to the'lower part of the oilcylinder 12'." Al'so'the' maximum extent of further-depression of 'the ha n'dIe' 86and in turn =reg'ulation of said rate ofdi's'harge ='of"oil may be regulated'by" an"adjustable stop"which is heresh'citt n 'as"ah"adjusting scfewflfi whioh will limit the upw'ai'wmovemen't of the cross hea s2 s 3' s4;-" s

While discharging the beer at the desired rate to provide the desired-extent O'PIOamY tH maln pistdfi'iis -fl ssha's' mot B d lifiwelr'dly until the iston at; contacts tfieheaa a r 'en" upoa re: versing themovemeil't 0f'1ever86, i. e; rriii'ving'it upward to a neutral positiohf'valve 5 8'-s'tarts downwardly arid port '64 i's' opned; thus "admittihg atmospheric pressure ahti 'air into the passageway 55 and 'outletfspout lj 'jthus enabling all liquigl'trapped in the outletspout'dl t'o' d'rai'n' out anq completely disfchare the'spoiit 4| upon each operatibn; m. i:

Also'whe'n the lever 86 was moved to a neutral position} the outlet valve 58' via"rhoved do'vi/n' vvargily by "reas'on of 'p'riag' 'and an'fbeer remaining *the'crvics about piston 96-41 and head 3 If"and in the lower portion o'f'the discharge valveoylinder Q8; isco'mp'ressed and plaoed under pressure by act'i onoffthe 'oiitl'et verve 58.

Preferably'the leven-ih'rnbist' i's provided with a detent member I8I Fig. 11, yieidir'ily supported by a spring I82 and'adapted"to drop into countersunk depressions "I 8 3 in the "frame,

shown dotted in Figs. and 2 1; to yieldingly hold the lever member 86 in the neutral position or in a raised position." l A suitable vented removable plug I84 is provided in the oil reservoir- I34 to facilitate introduction of oil and prevent a vacuum in the. oil reservoir. l l

.During normal operation, theinlet valve. 41 must be first closed before the. outlet valve 58 may be opened. For facilitating :leani1;1g,v a cleaning lock, Fig. 3, is. provided for locking the, lever I SI and in turn locking-.the-inlet valve :41 open during cleaning of. the dispenser. This cleaning :lock comprises a button. member lfll longitudinally movable in asocket I 92 and urged outwardlyqby a spring 193,; A locking bar/H14 is secured on the button member: land adapt-.1 ed to be moved into engagement with the upper forward end portion ofv lever arm 1:31 to lock'the same in a depressed position, which position holds the inlet" valve 41 oil of its seat 46, thus allowing the cleaning fluid, which is forced into chamber through outlet ...4.l,z..to. pass out through in a direction opposite to the normal direction of the beer flow; thus cleaning all beer passages. o i 7;,

The "force -of inlet *valve spring exerted through lever I3I onfithe under side of locking bar I94 creates friction sufllcient to overcome the urge of cleaning lock-springllltto disengage locking bar l94'f-rom lever l3l.'i Whenhandle lever 86 is againraised to its uppermost position, lever-:43] is depressed to .a-lower,i position than that in which it has been held by locking bar I94, and spring I93 forces locking .bar out of engaged position with lever 131,- thus per-.

mitting lever I3I to move upwards anddown wards normally with the movement of handle lever 86..

. The rack' bar 1 M, which is fixed to spring guide member 3, is connected by-gearing l4 with v 7 suitable registering mechanism 8 2-shown in Figs.

2, 4,-5, 8,- 13 and 14 for registering the total vol-.

ume of beer dispensed" As this registering means 82 is of wellkn'own iorm and isnot'herein claimed it is not'desoribedin' detail; The gearing H4" is shown somewhat' diagrammatically in Fig. 8;=and in section-in Fig; '2, which also shows clutch mechanism ilNlfor disengaging gearing I 14" from theregistering means 82 during-filling movement of the beer piston, as it is desired to register only discharging movement of the beer piston.

The clutch 200engages the'fgearing ll4 with the register 82 during dischargingmove'ment a disengages. th ai'm fi il? '.1' ,i 82 during filling movement; Clutch operating cam 2&2 (Fig. 29), on the side of fill pressure control toggle I23 operates clutch mechanism 200 "(Fig 2)., Fill pressure control toggle 123' is actuated by movement oifroundedehd I21 oi the. lever 86 engaging bracket 1 15 on the down-.

7 Wa S rok Qfs d ll gwi ih nl v 1? n a dl e a i 1 29?! avas?!" when turn e h sq ut hflq we i eeeasa s a ie H45 ro re i erin m ch nism 1*.33- Unwars mov m o a d n 21 en a e he. regist ring mechanism 182 a V The cam .ll9, operates the tall l l throu h suitable leverand ratchet .-'mechahism, i d t d generally by-HS' in .Fig. 8. Thisyta'llymecha-v nism is also of well known form and is not here: in described in detail, except that; the formof cam H9 enables it totally one-ihalficountzwhen m at eithe- 9 ratin era e erti a shin .eir il efie i a five-cent glass is drawn and 'fullrconntwhen a ten-cent glass is drawn.

" A removable housing 195 (rials). having a ment of the. same .is shown in Fi s. ll but itis ,onriittedv from a l f he oth r This housing fitsover. th up er pa t o -aba e ar tion .30. and a. screw'g il, Fla sec re portion 185 to. the member- !!l- A hand: 1 19115 rotativel y mounted lathe upper prtienaf th s housinga priham nber 3. eh agesthis hand: wheel to-hol i i any Positi inwh ,h it is set, sso lse hi int p hea Wheel adapted :toofitoyer t e head of the-W29 foam control screw &s9tl atil 1. adiustedbythe tu nin 91 th ha d whe maximumlj aem ntr l screw 11 fli threads. 8, me in fixed h fi 9f a rame and .011 ,cxlihd memb r it show area. n. 2) ahclialana si -lie.llandl ia' leve' homrlae has 01 Il s uppe and 9H1 maximum rioa so tra xew 99 ma eie looselrht.hq rmtatwe h 1.11m. sock t 8 et ane wh l 181-. T e, pur ose 9i th 9??? adihs a lr me icins max mum-Wren. r

d memb 1 at. Th -19w? s i -W all seems. i

ietas hqd i 'E-isswe the maximal am Page: upper ra ed.- 11 a 1 39? this hus starrin aw e ale a i h. stgiisr iivsa m .t l ansl' i a ca 0 m s e 'i F gs 30,:31, and 32; flscr sel -Vegas an adjust UJ R U ams a r er w it Br w of summar the mode .1 93????91 peratuzfe nq ng thepgndnigA I t here, he

under some.. lee tomoih a bon dlqlede i a The. heerh the inlet valre ei ber. .5 a a ll1l sumcishthresshn ao that ei t? l' not foam... Assumin a s ti i in t e l! operation wher a sle o eagle es .aa l-.- d ha re r m e ce el 1 .oh 'hehw Sh ea -arse hwefhhha aware.

of .theinl tavalte .91.. whength" iiilet 2 .5 raised byonerat ohiq ia hand love 86 em.

will belno iwire drawingf oi heerabhutithe valv 41, i causing foam. .111; is limnolitan .to 0ie l' fii in thisinventionl hrovide .where gmhe I inlet valve. 4 [may be lifted from its. seat .iwithoui; j

ma n e e ll: 60, 1,55, I52

e e ant .oilhoer twi iii s htbf n the his;

causing change'of pressure or agitation of the beer, thus preventing foaming.

Next thevalve 4'! is completely opened before any movement in the'beer occurs. This is accomplished as the pressure of the beer which is exerted against the piston 96 is transmitted by the piston rod I03 to the piston I09 of the fluid pressure control means. This tends to urge the piston I09 downwardly, which movement is resisted by the fluid or oil present in the oil cylinderbelow the piston I09. Referring to Fig. '13, the oil below the piston I09 is in communication with the passageway I88 and is urged against valve I88. The valve I88 is spring loaded and adjustable so that it may not be opened until a desired fiuid predetermined pressure is created thereagainst. This means that after the inlet valve 41 hasbeen completely opened, there will be no movement of the piston 96 until suflicient force is exerted against 96 to unseat the valve I88 in the fluid pressure control means. Thus there will be maintained a suflicient pressure at all times to prevent foaming ofthe beer. After the valve I88 has been unseated, the fluid will flow past the valve I88 and into the reservoir I34, and thence through ports in therotor I4I into the oil cylinder I2 above piston I09. Thus the rate of downward travel of thepiston 86 is determined by the pressure of spring "I89, acting to restrict the passageway I86; By controlling the downward travel of the piston in response to predetermined pressures exerted on the piston, I am able to have-themeasuring chamber filled and without foam onthe'beer. In this connection it will be helpful to keep in mind that the release of carbon dioxide from'within the beer may be well likened to the boiling point of a liquid,'and for each temperature there is a critical pressure which is suificient at that temperature to retain the carbon dioxide content within the beer. The release of the carbon dioxide content from within the beer causes the foaming conditions. Likewise it should bekept in mind that the beer has been refrigerated before entering the'inlet conduit 44 and to a temperature found most desirable for serving beer which will vary only through a small range. By various links and levers previously explained when the handle 86 is urged upwardly, the inlet valve 41 will be opened to accomplish the results which have just been described. At this time the spring 60 will have urged the outlet valve 58 into closed position. However, should the outlet valve 58 for any reason fail to have gone down by said spring 80, the movement of the handle 86 upwardly will, through the various linkages described, urge said outlet valve 58 closed.

After the piston 96 has been urged downwardly by the incoming beer and while the beer has been maintained under a suiflcient pressure to prevent foaming, the travel of the piston will continue until the piston I80 engages the lower part of oil cylinder I2. This position willbe audibly indicated by the metallic sound emanating by reason of contact between the metal piston I08 and the bottom of the oil cylinder I2 and will be visibly indicated as the lug I (Fig. 4) will be in registration with the number at the lower part of the scale 20I (Fig. 18) to which the volume to be measured in the device has beenset.

At this point the operator moves the lever 88 in a downward direction and through links and levers,-the downward movement of the handle 86 serves to first seat the inlet valve 41. This is accomplished by the time the handle as moves to the neutral position, which is shown in Fig. 11. It is to be noted that any pressure on the upper side of inlet valve 41, as in the inlet valve chamber 45, cooperates with the spring 55 in positively seating the, valve 41 on its seat.

Further downward movement of the handle 86 from the neutral position shown in Fig. 11 serves first to throw in the clutch mechanism 200 so that the registeror counter 82 for counting the ounces dispensed will operate only during the ensuing upward movement of the piston 96. The downward movement of. the handle 86, operating through the various links and levers previously described, serves to move the piston like discharge valve member 158' upwardly. I have found it' practical in my invention to combine a valve outlet member with a means for increasing the volume of the metering reservoir. It is to be distinctly understood that by providing a member having both functions I am not to be limited to any such specific construction. As the bead in the measuring chamber between the piston 96 and the head 3I is under pressure, as both the inlet valve 41 and the outlet valve 58 are closed, the beer may not be directly dispensed or else undesirable foaming would occur due to the spurt incident to the dispensing of beer under such pressure by a direct opening valve. To eliminate any such tendency I relieve the pressure'by moving the piston valve 58 upwardly, which thus allows the beer while static to expand and relieve the pressure all before thevalve 58 raises sufliciently in height to provide an opening discharge port to the spout 4|. It must be kept in mind that beer may be compressed and will expand upon the release of pressure, due to the change in size of .the bubbles of the carbon dioxide included therein. Foaming of beer is brought about by reason of friction between the beer and external surfaces, as distinguished from movement within the beer itself, when the pressure is insufllcient to retain the carbon dioxide within the beer. As the beer was under pressure before movement of the piston valve 58,

this pressure was relieved as the piston valve 58 moved upwardly in the discharge valve cylinder 38. No'movement of the piston 96 occurs duringthe expansion period and the beer is static due to'the fact that the piston 86 is connected with the piston rod I03 and piston I09. The fluid above the piston I08 will prevent upward movement of said piston I08 and in turn the piston 96 unless fluid is permitted to pass from oil cylinder I2 into .oil reservoir I34. The only way that such fluid can pass between such parts is through the foam and fill control rotor HI. Unless the handle 86 moves sufliciently downwardly to compress the spring BI, the ports of said foam and fill control rotor MI will be in such position that the piston I08 cannot move upwardly. Thereafter'upon further depression of the handle 86, either by hand control of the extent of compression of spring BI, or until the lug 83 engages the adjustable stop 90, the rate of upward movement of the pistonSB and in turn the discharge of beer will be controlled. In other words, if more foam is desired, it is only necessary to discharge the beer at a faster'rate, or if less foam is desired,-it is only necessary to provide for the discharge of the beer at a slow rate as the impact of the beer in 'a' glass will cause foam.

After the piston 90 has moved upwardly into the positionv shown in Fig. 11 where it rests spout 4i, whichcontents were held therein byatmospheric pressure. As the piston valve 58 moves downwardly by reason of the spring 60, it will serve to compress any beer remaining-inthe discharge valve cylinder 38 so that whatever openings are present between the piston 96 and head 3| will 'be'filled with beer under pressure and beer will be under pressure adjacent'the underside'of the inlet valve 41, thus completing a cycle of operation.

Throughout the operation of my device I thus provide apparatus where the beer at-the temperaturesobtaining may be handled under sufiicient pressure to maintain the carbon dioxide content therein until after the beer has been, measured. Thereafter I provide means to releasethe pres-' sure on the then static beer trapped within the measuring cylinder by increasing the volume of the confining chamber. Then the confining chamber is open tothe atmospheric and the beer is lifted out through a discharge port and, at an adjustable predetermined rate of flow.

Obviously, changes may be made in the forms,

dimensions and arrangement of the parts of my invention, witho'ut departing from the principle thereof, the above setting forth only preferred forms of embodiment.

I claim:

l. A device of the class -described comprising cylinder means; a piston mounted 'for traveling movement in said cylinder forming with said cylinder an expansible and contractable chamber; conduit means connecting a source of effervescent and gas charged liquid under pressure; with said expansible and contractable chamber; inlet valve means between said conduit means and said chamber; outlet valve means for said chamber; beer delivery spout means connected with said outlet valve means; air vent valve means in the upper 'portion of said spout'means; andoperat ing lever means operatively connected with said inlet valve means, said outlet valve means, and air vent valvemeans.

2. A device of the classdescr'ibed comprising cylinder walls and head means; a piston mounted for travelling movement in said cylinder forming with said cylinder an expansible and contractable chamber; conduit means connecting a source'of effervescent and gas charged liquid under pressure with said chamber; inlet valve means between said conduit means and said chamber; outlet valve means for said chamber; shaft means threadedly connected with said piston; adjustable stop means'carried by and threadedly connected with said shaft, whereby simultaneous duitmeans and said chamber; outlet valve means for said chamber; shaftmeans mounted-for movement with said piston; a plurality 'ofsym metrically positioned projecting stop members carried by said "shaft; afixed Stop. member have ing symmetrically positioned projecting stop members positioned intermediate the path of travel and movable into and out of the path-of" travel of: the projecting stop members carried bysaid shaft; and a second fixed stop member engageablelwith and determining the maximum travel of the projecting stop members carried by said shaft. v 1

4. A device of the class described comprising an upright cylinder forming meanshaving an upper end and side walls; a piston mounted in said cylinder-for traveling movement toward and away from said upper end wall and forming with said cylinder an expansible and contractable.

under pressure with said main chamber to permit saidliquid under pressure to move said pis ton away from-said end wall'and expand the main chamber; piston control andoperating means resisting movement of said piston on its chamber expanding stroke and providing controlled movement'to said piston on its chamber contracting stroke; inlet valvemeans connecting and disconnecting said conduit means from said main chamber; an expansible and contractable auxiliary chamber connecting with the upper. portion of said main chamber and above the liquid level therein; means'expanding and contracting said auxiliary chamber, whereby upon expansion ofsaid auxiliary chamber the main chamber is=expanded in capacity,zithe' pressure of liquid therein'is reduced andthe liquid therein is expanded without agitation; and valve controlled outlet dispensing means for delivering liquids to containers in atmosphericficonditions and connected with said main chamber, whereby liquid is expanded in said main chamber without agitatiori thereof upon expansion of said auxiliary chamber, is vented to the atmosphere upon-openv ing of said valve controlled outlet dispensing means; and-"then such liquid is lifted upwardly by the piston on its chamber contracting. stroke and discharged.

5. A-device of the class described comprising an upright cylinder forming means having an upper end and side walls; a piston mounted in said cylinder for traveling'movement toward and away from said upper end wall and forming with said cylinder an expansible. and contractable main chamber; conduit means connecting a source of efiervescent and'gas charged -liquid under pressure ,with'said mainchamber to per-.-

mit said liquid under pressure-to. move said piston away from said end wall and expand the contracting stroke; inlet valvemeans connecting and disconnecting said conduit means from said main chamber; outlet dispensing means for delivering liquids 'tocontainers in atmospheric conditions; upright auxiliary chamber; means connecting .at theplowerflportion with the upper portion of said main chamber and above the liquid level thereinland connected at the upper portion with said "outlet dispensing means; and

. traveling piston valve means in said auxiliary chamber mounted for traveling movement to;

ward andaway .from the main chamber andintov 7 closing and opening positions as respects said outlet dispensing means, said piston valve means being movableasubstantial distance in 'saidza'uxliliary chamber. means while .in nosin eposition as respects said outlet dispensing means, where by upon upward movement ofcsaid piston valve means the main chamber is expanded in capacity, the pressure of liquid therein is reduced, the liquid therein is expanded without agitation, the liquid is vented to the atmosphere through said outlet dispensing means, and then such liquid is lifted upwardly by the piston on its chamber contracting stroke.

6. A device of the class described comprising an upright cylinder forming means having an upper end and side walls; a piston mounted in said cylinder for traveling movement toward and away from said upper end wall and forming with said cylinder an expansible and contractable main chamber; conduit means connecting a source of effervescent and gas charged liquid under pressure with said main chamber to permit said liquid under pressure to move said piston away from said end wall and expand the main chamber; piston control and operating means resisting movement of said piston on its chamber expanding stroke and providing controlled movement to said piston on its chamber contracting stroke; inlet valve means connecting and disconnecting said conduit means from said main chamber; lever operated regulating means determining the rate of travel of said piston on its chamber contracting and liquid dispensing stroke thereby also functioning as a foam control; an expansible and contractable auxiliary chamber connecting with the upper portion of said main chamber and above the liquid level therein; means expanding and contracting said auxiliary chamber, whereby upon expansion of said auxiliary chamber the main chamber is expanded in capacity, the pressure of liquid therein is re duced and the liquid therein is expanded without agitation; .valve controlled outlet dispensing means for delivering liquids to containers in atmospheric conditions and connected with said main chamber, and a lever connected with said regulating means, said means expanding and contracting said auxiliary chamber, and said valve controlled dispensing liquid is expanded in said main chamber without agitation thereof upon expansion of said auxiliary chamber, is vented to the atmosphere upon opening of said valve controlled outlet dispensing means, and then such liquid is lifted upwardly by the piston on its chamber contracting stroke and discharged with control of dispensing and foam control from a single lever.

7. A device of the class described comprisin an upright cylinder forming means having an upper end and side walls; a piston mounted in said cylinder for traveling movement toward and away from said upper end wall and forming with said cylinder an expansible and contractable main chamber; conduit means connecting a source of efiervescent and gas charged liquid under pressure with said main chamber to permit said liquid under pressure to move said piston away from said end wall and expand the main chamber; piston control and operating hydraulic means resisting movement of said piston on its chamber expanding stroke and providing controlled movement to said piston on its chamber contracting stroke; lever operated expansible and contractable aperture means determining the rate of flow of the liquid in the piston operating hydraulic means and in turn the rate of travel of said piston on its chamber contracting and liquid dispensing stroke thereby also functioning as afoam control; inlet valve means conmeans, whereby necting and disconnecting said conduit means from said main chamber; an expansible and con tractable auxiliary chamber connecting with the upper portion of said main chamber and above the liquid level therein; means expanding and contracting said auxiliary chamber, whereby upon expansion of said auxiliary chamber the main chamber is expanded in capacity, the pressure of liquid therein is reduced and the liquid therein is expanded without agitation; valve controlled outlet dispensing means for delivering liquids to containers in atmospheric conditions and connected with said main chamber; and a lever connected with said aperture means, said means expanding and contracting said auxiliary chamber, and said valve controlled dispensing means, whereby liquid is expanded in said main chamber without agitation thereof upon expansion of said auxiliary chamber, is vented to the atmosphere upon opening of said valve controlled outlet dispensing means and such liquid is lifted upwardly by the piston on its chamber contracting stroke and discharged with control of dispensing and foam control from a single lever.

8. A device for drawing and dispensing effervescent and gas charged liquids for relatively immediate use disposed in a container under pressure, comprising chamber forming members movable relatively toward and away from each other forming an expansible and contractable measuring chamber for receiving said liquid under pressure sufficient to retain the gases within the liquid; conduit means connecting a source of effervescent and gas charged liquid under pressure; inlet valve means connected with said conduit means and connecting and disconnecting said chamber from said source of effervescent and gas charged liquid under pressure; dispensing outlet means for dispensing a liquid under atmospheric conditions; outlet valve means connecting and disconnecting said chamber from said dispensing means; chamber expansion means connected with said chamber, whereby when said inlet and outlet valve means are closed, said chamber expansion means will enlarge said chamber and permit liquid at rest in said chamber to expand while sealed from the atmosphere; and means moving said chamber forming members toward each other and discharging liquids, without displacement of the liquid by air, from said chamber out of said dispensing means and into a suitable container when said outlet valve means are in open position.

9. A device for drawing and dispensing effervescent and gas charged liquids for relatively immediate use disposed in a container under pressure, comprising chamber forming member movable relatively toward and away from each other forming an expansible and contractable measuring chamber for receiving said liquid under pressure sumcient to retain the gases within the liquid; conduit means connecting a source of effervescent and gas charged liquid under pressure; inlet valve means connected with said conduit means and connecting and disconnecting said chamber from said source of effervescent and gas charged liquid under pressure; dispensing outlet means for dispensing a liquid under atmospheric conditions; outle't valve means connecting and disconnecting said chamber from said dispensing means; chamber expansion means connected to the upper portion of said chamber and above the liquid level therein, whereby when said inlet and outlet valve means are closed, said chamber expansion means will enlarge said chamber and permit liquid atrest in said cham ber to expand while sealed from the atmosphere;

means moving said chamber forming members toward each other and discharging liquids, with-' out displacement of the liquid by air, from said chamber out of said dispensing means and into a suitable container when said outlet valve means are in open position; and regulation means controlling the rate of movement of said chamber forming members relative to each other;

10. The method of drawing and dispensing effervescent andgas charged liquids for relatively immediate use from a container under pressure substantially above atmosphere comprising, de-

livering a predetermined amount of the ,said liquid into an expansible measuring chamber and at a pressure suflicient to retain'thegases within the liquid; expanding the said chamber by the entry of said liquid into said chamber; sealing the chamber and the liquid thereinfrom the container; enlarging the chamber above'the liquid level therein while the chamber is sealed from the atmosphere and while the liquid is substantially at rest to reduce the pressure and permit expansion of the liquid; opening the measur ing chamber to the atmosphere and providing atmospheric pressure therein; and dispensing said liquid at atmospheric pressure into a suitable container by contracting said chamber.

11. The method of drawing and dispensing effervescent and gas charged liquids for relatively immediate use from a container under pressure substantially above atmosphere comprising, delivering a predetermined amount of the said liquid into an expansible measuring chamber and substantially at a pressure suflicient to retain the gases within the liquid; expanding the said chamber by the said liquid; sealing the chamber and the liquid therein. from the container; enlarging the chamber-above the liquid level therein while the chamber is sealed from the atmosphere and while the liquid is substantially at rest to reduce the pressure and permitexpan-- ;ly immediate use from acontainer wherein the liquid is under pressure comprising,-delivering a predetermined quantity under pressure of such liquid into an expansible chamber and thereby, expanding the same; sealing said chamber; en

larging the capacity of such chamber above the I liquid level therein while said chamber is sealed and while the liquid therein is substantially at rest; venting such chamber to the atmosphere; and dispensing said liquid into a suitable container under atmospheric conditions by contracting said chamber.

13. A device of the class described comprising cylinder means; a piston mounted for traveling movement in said cylinder forming with said cyl inder an expansible and contractable chamber;

conduit meansconnecting a source of effervescent and gas charged liquid under pressure with said expansible and contractable chamber; inlet valve means normally assuminga closed position and disposed between said conduit means and said chamber; outlet valve means for said chamber;

operating lever means; inlet valvecontrol means positioned in the path of travel of-said operating j lever means for opening said inlet valve means; outlet valve control means connected with said operating lever means for moving said outlet valve means into and out ofclosed position; and

locking 'means holding said inlet valve means in open position, wherebythe inlet valve means maybe held .open'and the outlet valve means opened simultaneously therewith for cleaning purposes RALPH s. WHALEY; 

